Waterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13
Waterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13
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Waterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13

3.8 stars out of 6 reviews
(3.8)|
6 ratings

Key item features

  • Powerful Performance: Features a 4HP motor and dual-speed design for superior water flow and efficient operation in spa systems.
  • Durable Construction: Built with a 56-frame construction and Viton seals for extended lifespan and enhanced durability.
  • Optimized Efficiency: Incorporates a large 2.5-inch intake for improved circulation and a split capacitor for minimum energy consumption.
  • Flexible Installation: Designed with a rotatable wet end, allowing for versatile installation options.
  • Quiet Operation: Equipped with double-shielded ball bearings for smooth and quiet performance.
  • Cooler Running: The 56-frame construction contributes to a cooler operating temperature, extending motor life.
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Current price is $511.19
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Columbus, 43215
Arrives by Sat, Feb 14
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Sold and shipped by MAV AQUADOC
4.675 stars out of 5, based on 80 seller reviews(4.7)
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Waterway 3711621-1D 4HP 230V 1-Speed 56 Frame Executive Pump
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Comparison Chart:
Fountain, pond & pool pump typeAbove-Ground Pool PumpWaterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13In-Ground Pool PumpPump, Waterway Power Defender PD-110, 1.1hp,115/230v,1-Spd-Waterway 3722021-1D 2Speed 5HP 230V Spa/Hot Tub PumpSubmersible Pond PumpWaterway 3410030-1E Iron Might 1/15HP Single-Speed Circulating Spa Pump 48-Frame 115V-Waterway Executive 56-Frame 3HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2in. Discharge, 230V 3721221-13Pool PumpsWaterway Executive 56 Frame Spa Pump 3 HP 230V 3721221-1D-Waterway Viper 56-Frame 5HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2-1/2in. Discharge, 230V 3722021-1V-KFFKFF Dual Speed SPA Pump, 56-Frame, AC 220-240V Hot Tub SPA Pump, 4HP/210GPM/65.61ft High Speed or 0.7HP/103GPM/16.07ft Low Speed, 2" Port 90° Rotational Interface, UL StandardsPool PumpsWaterway 3711621-1D 4HP 230V 1-Speed 56 Frame Executive Pump
Horsepower4 HPWaterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-131.1 HPPump, Waterway Power Defender PD-110, 1.1hp,115/230v,1-Spd5 HPWaterway 3722021-1D 2Speed 5HP 230V Spa/Hot Tub Pump15 HPWaterway 3410030-1E Iron Might 1/15HP Single-Speed Circulating Spa Pump 48-Frame 115V3 HPWaterway Executive 56-Frame 3HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2in. Discharge, 230V 3721221-133 HPWaterway Executive 56 Frame Spa Pump 3 HP 230V 3721221-1D5 HPWaterway Viper 56-Frame 5HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2-1/2in. Discharge, 230V 3722021-1V4.0 HPKFFKFF Dual Speed SPA Pump, 56-Frame, AC 220-240V Hot Tub SPA Pump, 4HP/210GPM/65.61ft High Speed or 0.7HP/103GPM/16.07ft Low Speed, 2" Port 90° Rotational Interface, UL Standards4 HPWaterway 3711621-1D 4HP 230V 1-Speed 56 Frame Executive Pump
Volts240 VWaterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13115230 VPump, Waterway Power Defender PD-110, 1.1hp,115/230v,1-Spd230 VWaterway 3722021-1D 2Speed 5HP 230V Spa/Hot Tub Pump115 VWaterway 3410030-1E Iron Might 1/15HP Single-Speed Circulating Spa Pump 48-Frame 115V-Waterway Executive 56-Frame 3HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2in. Discharge, 230V 3721221-13230 VWaterway Executive 56 Frame Spa Pump 3 HP 230V 3721221-1D230 VWaterway Viper 56-Frame 5HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2-1/2in. Discharge, 230V 3722021-1V240 VKFFKFF Dual Speed SPA Pump, 56-Frame, AC 220-240V Hot Tub SPA Pump, 4HP/210GPM/65.61ft High Speed or 0.7HP/103GPM/16.07ft Low Speed, 2" Port 90° Rotational Interface, UL Standards-Waterway 3711621-1D 4HP 230V 1-Speed 56 Frame Executive Pump
Pump operating phaseDual SpeedWaterway Executive 56 Frame Spa Pump 4 HP 230V 3721621-13Single SpeedPump, Waterway Power Defender PD-110, 1.1hp,115/230v,1-SpdDual SpeedWaterway 3722021-1D 2Speed 5HP 230V Spa/Hot Tub PumpSingle SpeedWaterway 3410030-1E Iron Might 1/15HP Single-Speed Circulating Spa Pump 48-Frame 115VDual SpeedWaterway Executive 56-Frame 3HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2in. Discharge, 230V 3721221-13Dual SpeedWaterway Executive 56 Frame Spa Pump 3 HP 230V 3721221-1DDual SpeedWaterway Viper 56-Frame 5HP Dual-Speed Spa Pump, 2-1/2in. Intake, 2-1/2in. Discharge, 230V 3722021-1VDual SpeedKFFKFF Dual Speed SPA Pump, 56-Frame, AC 220-240V Hot Tub SPA Pump, 4HP/210GPM/65.61ft High Speed or 0.7HP/103GPM/16.07ft Low Speed, 2" Port 90° Rotational Interface, UL StandardsSingle SpeedWaterway 3711621-1D 4HP 230V 1-Speed 56 Frame Executive Pump
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3.8 out of 5 stars
stars6 ratings6 reviews
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Showing 1-3 of 6 reviews

Dec 6, 2025
janice
Sold and shipped byBackyard & Pool Superstore
5 out of 5 stars review

Verified Purchase

Easy to install

Easy hookup. Seems to be of good quality so far for the money. Working as should for my hot tub. Not disappointed in it at all. Glad it was available and easy to install. Heavy though. I saved lots of money replacing the pump on my own. All electrical wires were assembled, so I just needed to plug it into the main panel. I am highly satisfied with this pump.

Incentivized Review
Helpful?2Q29CDHYCK2O171859319
May 11, 2025
Sarah
Sold and shipped byBackyard & Pool Superstore
5 out of 5 stars review

Verified Purchase

Nice pump and fast shipping

Incentivized Review
Helpful?2Q29CDHYCK2O171859319
Nov 28, 2022
Jeremy
5 out of 5 stars review

Verified Purchase

Worked great, as expected

Incentivized Review
Helpful?2Q29CDHYCK2O171859319